Traffic on Lakeville Highway was backed up for miles Friday after a five-vehicle collision blocked both directions of traffic near Highway 37, CHP officials said.

Officers funneled one-way traffic onto the shoulder near the site of a travel trailer that was demolished in the collision, sending debris across the roadway, Officer Jon Sloat said.

Initial reports indicated the 11 a.m. crash involved a big rig, Toyota SUV, Dodge pickup and a tan SUV.

No injuries were reported in the crash.

The road was expected to be reduced to one-way traffic until at least 1:30 p.m., officials said

Traffic was at a standstill for miles, with people getting out of their vehicles and standing along the road, although CHP officers were asking motorists to stay in their cars.

More information will be posted as it becomes available.